Classification powder concentrator with built-in material distribution structure

Abstract

The invention relates to a grading powder selecting machine with a built-in material distributing structure, and belongs to the technical field of powder selecting machines, the grading powder selecting machine is characterized in that a first transmission assembly and a second transmission assembly are arranged at the top and the bottom of a shell module respectively, and an impeller module used for separating powder is arranged in the shell module; a material distributing cone and a material scattering disc are further arranged in the shell module; the material scattering disc is arranged below the material distributing cone; a material guide pipe is arranged in the shell module, and a material outlet of the material guide pipe is connected to a material inlet of the material distribution cone; the output end of the first transmission assembly is arranged in the material guide pipe in a sleeved mode. And one end of the material guide pipe is arranged in the impeller module in a penetrating manner. Materials are independently conveyed to the material scattering disc through the material guiding pipe and the material distributing cone, the operation priority of the material dispersing step is guaranteed, and the material dispersing step and the material sorting step are carried out in order. The impeller module and the scattering disc are arranged in the shell at different positions, so that the sorting and scattering processes of the materials can be independently carried out and do not interfere with each other; and the sorting accuracy of the materials is improved.

Description

Technical Field

[0001] The invention relates to a grading powder selecting machine with a built-in material dividing structure, belonging to the technical field of powder selecting machines. Background Art

[0002] At present, upper feeding powder classifiers are widely used. The spreading plate of this type of powder classifier is set to the upper part of the rotary grading mechanism, and the material dispersion process and grading process are completed in the same working space inside the shell.

[0003] This type of powder classifier has the following disadvantages: when selecting materials, the rotary grading mechanism uses wind power to absorb the scattered materials. Since the rotary grading mechanism and the spreading plate are set close to each other, some materials have not been completely scattered and are directly sucked into the rotary grading mechanism, and the material scattering and grading process is disturbed. At the same time, the rotary grading mechanism cannot obtain materials that meet the sorting requirements, which also leads to incomplete material classification and affects the sorting effect. Summary of the invention

[0004] The technical problem to be solved by the present invention is: to overcome the shortcomings of the prior art and provide a grading powder selection machine with a built-in material separation structure, which independently completes the material dispersion and classification steps, avoids mutual interference between partial material separation processes, improves the fineness and accuracy of material separation, and ensures the material separation effect.

[0005] The present invention discloses a grading powder selection machine with a built-in material separation structure, comprising: a first transmission assembly and a second transmission assembly are respectively arranged on the top and bottom of a shell module, an impeller module for separating powder is arranged inside the shell module; and a material separation cone is also arranged inside the shell module.

[0006] The output end of the first transmission component is connected to the movable part of the impeller module; the output end of the second transmission component is provided with a material spreading plate; the material spreading plate is arranged below the material distribution cone.

[0007] A material guide pipe is arranged inside the shell module, and a material outlet of the material guide pipe is connected to a material inlet of the material distribution cone.

[0008] The output end of the first transmission component is sleeved in the material guide pipe; one end of the material guide pipe is penetrated in the interior of the impeller module.

[0009] The material dividing cone includes: a middle cylinder, an outer bucket and an inner bucket are arranged in layers on the side of the middle cylinder, and an independent feeding channel is connected between the inner bucket and the outer bucket; a discharge port is arranged on the side of the middle cylinder, and the inside of the middle cylinder is connected with the interlayer between the outer bucket and the inner bucket through the discharge port.

[0010] Furthermore, the first transmission assembly includes: a first motor disposed on the housing module, and the first motor is coaxially connected to the first transmission shaft.

[0011] The second transmission assembly includes: a second motor arranged on the housing module, and the second motor is coaxially connected to a second transmission shaft.

[0012] Furthermore, the impeller module includes a rotor and a stator, the rotor is connected to the first transmission shaft; the stator is connected to the housing module.

[0013] The spreading disc is connected to the second transmission shaft.

[0014] Furthermore, the discharge port of the material guide pipe is connected to the inner bucket; and the interlayer between the outer bucket and the inner bucket is connected to the bottom of the rotating wheel and the fixed wheel.

[0015] Furthermore, the lower end of the middle cylinder is connected with a middle material channel.

[0016] Furthermore, a material discharging platform is also provided inside the inner bucket.

[0017] Furthermore, the shell module includes: an air outlet shell, a graded upper shell, a graded lower shell, an air inlet shell and a discharge shell which are arranged in sequence from top to bottom; a material valve is arranged on the discharge port of the discharge shell.

[0018] Furthermore, a feeding port and an exhaust port are provided on the air outlet shell, and the feeding port is connected with the feeding port of the material guide pipe.

[0019] The air inlet shell is provided with an air inlet, and an air valve can be optionally provided on the air inlet.

[0020] Furthermore, the fixed wheel is connected to the inner wall of the grading upper shell; and the dividing cone is connected to the inner wall of the grading lower shell.

[0021] The first motor is arranged on the air outlet housing; the second motor is arranged on the air inlet housing.

[0022] Compared with the prior art, the present invention has the following beneficial effects: The material guide pipe and the material distribution cone transport the materials to the spreading plate independently, ensuring the operation priority of the material dispersion step, so that the material dispersion and sorting steps can be carried out in an orderly manner; the impeller module and the spreading plate are set in the shell at different positions to ensure that the material sorting and dispersion processes can be carried out independently without interfering with each other; the material sorting accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic cross-sectional view of a grading powder selection machine with a built-in material separation structure according to the present invention; Figure 2 It is a schematic diagram of a material dividing cone structure of a grading powder selector with a built-in material dividing structure of the present invention; Figure 3 The present invention is a schematic diagram of a sectional structure of a material dividing cone of a grading powder selecting machine with a built-in material dividing structure.

[0024] In the figure: 1. First transmission assembly; 101. First motor; 102. First transmission shaft; 2. Material guide pipe; 3. Air outlet housing; 301. Feeding port; 302. Air outlet; 4. Rotary wheel; 5. Fixed wheel; 6. Grading upper shell; 7. Grading lower shell; 8. Material dividing cone; 801. External bucket; 802. Internal bucket; 803. Material feeding channel; 804. Material discharging platform; 805. Middle cylinder; 806. Material discharging port; 9. Spreading plate; 10. air inlet housing; 1001. air inlet; 1002. air valve; 11. Middle material channel; 1101. Material distribution port; 12. Discharging shell; 13. Second transmission assembly; 1301. Second motor; 1302. Second transmission shaft; 14. Material valve. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 3 As shown, this embodiment is implemented through the following technical solutions: the top and bottom of the shell module are respectively provided with a first transmission assembly 1 and a second transmission assembly 13, and the inside of the shell module is provided with an impeller module for sorting powder; the inside of the shell module is also provided with a dividing cone 8.

[0026] The output end of the first transmission assembly 1 is connected to the movable part of the impeller module; the output end of the second transmission assembly 13 is provided with a material spreading plate 9; the material spreading plate 9 is arranged below the material distribution cone 8.

[0027] A material guide pipe 2 is arranged inside the housing module, and the material outlet of the material guide pipe 2 is connected to the material inlet of the material dividing cone 8. The built-in material dividing structure of the powder classifier includes: the material guide pipe 2 and the material dividing cone 8.

[0028] The output end of the first transmission assembly 1 is sleeved in the material guide pipe 2; one end of the material guide pipe 2 is penetrated into the interior of the impeller module.

[0029] The material dividing cone 8 includes: a middle cylinder 805, the side of the middle cylinder 805 is layered with an outer bucket 801 and an inner bucket 802, and an independent feeding channel 803 is connected between the inner bucket 802 and the outer bucket 801; a discharge port 806 is provided on the side of the middle cylinder 805, and the inside of the middle cylinder 805 is connected with the interlayer between the outer bucket 801 and the inner bucket 802 through the discharge port 806.

[0030] The materials to be sorted are independently transported to the material spreading plate 9 through the material guide pipe 2 and the material distribution cone 8, ensuring that the material dispersion process is carried out independently. The material guide pipe 2 and the material distribution cone 8 are arranged in coordination to ensure that the materials are separated from the impeller module during the feeding process, thereby avoiding the double interference of the impeller module and the material spreading plate 9 on the materials to be sorted, so that the material dispersion and sorting operations are carried out in an orderly manner; the impeller module and the material spreading plate 9 are independently arranged up and down in the housing module, ensuring that the material sorting and dispersion processes can be carried out independently without interfering with each other.

[0031] Specifically, the first transmission assembly 1 includes: a first motor 101 arranged on the housing module, and the first motor 101 is coaxially connected to a first transmission shaft 102 .

[0032] The second transmission assembly 13 includes: a second motor 1301 arranged on the housing module, and the second motor 1301 is coaxially connected to a second transmission shaft 1302 .

[0033] Specifically, the impeller module includes a rotor 4 and a stator 5, the rotor 4 is connected to the first transmission shaft 102; the stator 5 is connected to the housing module; in this embodiment, the rotor 4 and the stator 5 are both cylindrical, and a plurality of blades are provided on the rotor 4 and the stator 5; preferably, the arrangement density and angle of the blades on the rotor 4 and the stator 5 can be adjusted according to the sorting requirements of different particle sizes.

[0034] The spreading tray 9 is connected to the second transmission shaft 1302 .

[0035] Specifically, the discharge port of the material guide pipe 2 is connected to the inner bucket 802 ; the interlayer between the outer bucket 801 and the inner bucket 802 is connected to the bottom of the rotating wheel 4 and the fixed wheel 5 .

[0036] Specifically, the lower end of the middle cylinder 805 is connected with the middle material channel 11. One end of the middle material channel 11 is a material distribution port 1101. Further, the material distribution port 1101 can be set inside the material discharging shell 12 to discharge the middle material into the material discharging shell 12; the material distribution port 1101 can also be led out of the material discharging shell 12 as a separate middle material outlet for collecting the middle material.

[0037] Specifically, a material dispersing platform 804 is provided inside the inner bucket 802. The material dispersing platform 804 is conical. Figure 2 As shown, the function of the material discharging platform 804 is to discharge the materials in the inner bucket 802 into the peripheral feeding channel 803.

[0038] Specifically, the housing module includes: an air outlet housing 3, a graded upper housing 6, a graded lower housing 7, an air inlet housing 10 and a discharge housing 12 which are arranged in sequence from top to bottom.

[0039] A material valve 14 is provided on the material discharge port of the material discharge housing 12 .

[0040] Specifically, a feeding port 301 and an air outlet 302 are provided on the air outlet housing 3 , and the feeding port 301 is communicated with the feeding port of the material guide pipe 2 .

[0041] The air inlet housing 10 is provided with an air inlet 1001 , and an air valve 1002 may be optionally provided on the air inlet 1001 .

[0042] Specifically, the fixed wheel 5 is connected to the inner wall of the grading upper shell 6 ; the dividing cone 8 is connected to the inner wall of the grading lower shell 7 .

[0043] The first motor 101 is arranged on the air outlet housing 3 ; the second motor 1301 is arranged on the air inlet housing 10 .

[0044] The specific use principle of the present invention is as follows: When the powder selector is working, it is also connected to an induced draft fan and a dust collector, and the three together form a complete material sorting and collection system; the dust collector and the induced draft fan are connected in series to the exhaust port 302. When the induced draft fan is working, a negative pressure is generated in the shell module from the air inlet 1001 to the exhaust port 302, which acts as a pulling force on the material. When the powder selector is working, the inside of the shell module is maintained in a negative pressure environment. Furthermore, the sorted material particles are sucked out with the air flow to form a mixture. The dust collector filters the mixture and collects the material particles into the dust collector for subsequent use. When the powder selector is working, air enters the air inlet shell 10 from the air inlet 1001, and the air flow passes through the grading lower shell 7, the grading upper shell 6, the impeller module and the air outlet shell 3 in turn, and is finally transported from the exhaust port 302 to the externally connected dust collector.

[0045] When the powder selecting machine is started, the first motor 101 drives the rotating wheel 4 to rotate, and the rotating wheel 4 rotates to generate centrifugal force. The second motor 1301 drives the material spreading plate 9 to rotate, and the material spreading plate 9 rotates to generate centrifugal force.

[0046] When sorting materials, first, the materials enter the inner bucket 802 from the feeding port 301 through the material guide pipe 2, and the inner bucket 802 is used to connect the materials; further, the materials pass through the feeding channel 803 and fall onto the rotating scattering plate 9. Under the centrifugal force of the scattering plate 9, the materials are evenly scattered by the scattering plate 9 into the air inlet shell 10; among the scattered materials, the coarse materials with larger particle size can completely overcome the upward pulling force generated by the airflow in the shell module due to their own gravity, and then fall directly into the discharge shell 12 to complete the sorting of the coarse materials.

[0047] Furthermore, the lighter medium and fine materials rise with the airflow and enter the impeller module for further sorting: in the impeller module, the materials are subjected to the combined force of the airflow pulling force, the centrifugal force of the impeller 4, and their own gravity.

[0048] First, the pulling force of the airflow on the powder with small particle size and light weight can overcome the centrifugal force and gravity on itself, and the combined force on the powder is directed toward the inside of the impeller 4. Then, it passes through the impeller 4 along with the negative pressure airflow provided by the induced draft fan and is sucked into the dust collector for collection.

[0049] Secondly, the middle material has medium particle size and weight. The centrifugal force and gravity it is subjected to can overcome the pulling force of the negative pressure airflow. The combined force on the middle material is directed toward the inside and outside of the impeller 4. Therefore, the middle material cannot enter the impeller 4 and is discharged with the airflow of the induced draft fan.

[0050] Furthermore, the intermediate material enters the interlayer between the rotating wheel 4 and the fixed wheel 5 under the action of centrifugal force. On the other hand, after the centrifugal force weakens, the intermediate material falls into the interlayer between the outer bucket 801 and the inner bucket 802 under the action of gravity. Furthermore, the intermediate material enters the middle cylinder 805 through the discharge port 806 and is finally discharged through the intermediate material channel 11. The material distribution port 1101 can be set in the discharge housing 12 or connected to the outside of the powder selector. By adjusting the position setting of the material distribution port 1101, the intermediate material can be collected at different positions. The material realizes its own classification through the above setting.

[0051] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and equal changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention should all fall within the scope of the patent coverage of the present invention.

Claims

1. A grading powder separator with a built-in material separation structure, characterized in that: It comprises a shell module, wherein a first transmission assembly (1) and a second transmission assembly (13) are respectively arranged on the top and bottom of the shell module, and an impeller module for separating powder is arranged inside the shell module; a material separation cone (8) is also arranged inside the shell module; The output end of the first transmission assembly (1) is connected to the movable part of the impeller module; a material spreading plate (9) is arranged on the output end of the second transmission assembly (13); the material spreading plate (9) is arranged below the material distribution cone (8); A material guide pipe (2) is provided inside the shell module, and the material outlet of the material guide pipe (2) is connected to the material inlet of the material distribution cone (8); The output end of the first transmission component (1) is sleeved in the material guide pipe (2); one end of the material guide pipe (2) is passed through the interior of the impeller module.

2. A classifying powder separator with a built-in material separation structure according to claim 1, characterized in that: The material distribution cone (8) comprises: a middle cylinder (805); an outer bucket (801) and an inner bucket (802) are arranged in layers on the side of the middle cylinder (805); an independent material feeding channel (803) is connected between the inner bucket (802) and the outer bucket (801); a material discharge port (806) is arranged on the side of the middle cylinder (805); the interior of the middle cylinder (805) is connected to the interlayer between the outer bucket (801) and the inner bucket (802) through the material discharge port (806).

3. A classifying powder separator with a built-in material separation structure according to claim 2, characterized in that: The first transmission assembly (1) comprises: a first motor (101) arranged on the housing module, the first motor (101) being coaxially connected to a first transmission shaft (102); The second transmission assembly (13) comprises: a second motor (1301) arranged on the housing module, the second motor (1301) being coaxially connected to a second transmission shaft (1302).

4. A classifying powder separator with a built-in material separation structure according to claim 3, characterized in that: The impeller module comprises a rotating wheel (4) and a stator (5), wherein the rotating wheel (4) is connected to the first transmission shaft (102); and the stator (5) is connected to the housing module; The material spreading plate (9) is connected to the second transmission shaft (1302).

5. A classifying powder separator with a built-in material separation structure according to claim 4, characterized in that: The material outlet of the material guide pipe (2) is connected to the inner bucket (802); and the interlayer between the outer bucket (801) and the inner bucket (802) is connected to the bottom of the rotating wheel (4) and the fixed wheel (5).

6. The classifying powder separator with built-in material separation structure according to claim 2, characterized in that: The lower end of the middle cylinder (805) is connected to a middle material channel (11).

7. The classifying powder separator with built-in material separation structure according to claim 2, characterized in that: A material discharging platform (804) is also provided inside the inner bucket (802).

8. The classifying powder separator with built-in material separation structure according to claim 4, characterized in that: The housing module comprises: an air outlet housing (3), a grading upper housing (6), a grading lower housing (7), an air inlet housing (10) and a material discharge housing (12) which are arranged in sequence from top to bottom; A material valve (14) is provided on the material discharge port of the material discharge housing (12).

9. A classifying powder separator with a built-in material separation structure according to claim 8, characterized in that: The air outlet housing (3) is provided with a feeding port (301) and an air outlet (302), and the feeding port (301) is connected to the feeding port of the material guide pipe (2); An air inlet (1001) is provided on the air inlet housing (10), and an air valve (1002) is provided on the air inlet (1001).

10. The classifying powder separator with built-in material separation structure according to claim 8, characterized in that: The fixed wheel (5) is connected to the inner wall of the grading upper shell (6); the material dividing cone (8) is connected to the inner wall of the grading lower shell (7); The first motor (101) is arranged on the air outlet housing (3); and the second motor (1301) is arranged on the air inlet housing (10).

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